OUR JOURNEY

The Alternating Current Multiple Unit (A.C.M.U.) Society was formed in 2025 as the formal merger between two railway preservation groups, the Clacton Express Preservation Group and the Class 315 Preservation Society. The society is the proud owner of Class 315 No. 315856. We also provide restorative support and upkeep for two vehicles of Class 309, No. 309624, and the sole surviving vehicle of Class 317, No. 317345, now owned by the East Anglian Railway Museum in Essex, England, plus the other vehicle of 309624, now based at the Rushden, Higham and Wellingborough Railway.

OUR MISSION

Preserving the history of AC Multiple Units; Past, Present and Future.

The Alternating Current Multiple Unit (A.C.M.U.) Society is dedicated to preserving the rich heritage of AC Multiple units, an oft unloved and overlooked sector of heritage rail.

Our Journey So Far

2021

Founding of the CEPG

The Clacton Express Preservation Group was founded, to fundrasise for the aquistion and repatriation of 309 624

2019

Founding of the Class 315 Preservation Society

The Class 315 Preservation Society was founded and discussions began with Eversholt Rail about the possibility of acquiring a Class 315 on withdrawal from service.